Simon Donaldson is an English mathematician who received a Fields Medal for his work on 4 dimensional manifolds. He was knighted in 2012 and awarded the most prestigious mathematical prizes including the Shaw Prize, the Breakthrough Prize in Mathematics, the Oswald Veblen Prize, and the Wolf Prize in Mathematics.
Find out more at: https://mathshistory.st-andrews.ac.uk/Biographies/Donaldson/